Wrench



lNo. 620,477.

Patented Feb. 28, |899. 0. M. MILLER.

UNITED STATES PATENT OFFICE.

OSCAR M. MILLER, OF BENEDICT, NEBRASKA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 620,477, dated February28, 1899.

Serial No. 672,933. (No model.)

To all whom t may concern:

Be it known that l, OSCAR M. MILLER, residing at Benedict, in the countyof York and State of Nebraska, have invented a new and Improved W'rench,of which the following is a specification. y

My invention is in the nature of an improved combined monkey and pipewrench; and it has for its object to provide a wrench of this characterhaving a worm-Wheel-Operated sliding jaw and such sliding'jaw equippedwith pipe-grip devices which when not in use are capable of suchadjustment as to be securely held from projecting beyond the rear edgeof the said sliding jaw or in any manner interfering with all themovements or uses for which' the ordinary monkey-Wrench is adapted.

The invention also comprehends a novel construction of pipe-grip devicesattached to the sliding jaw in such a manner as to effect an easymanipulation and an effective opera; tion thereof.

With these objects in view the invention consists in certain details ofconstruction and combination of parts, such as will be first described,and then specically pointed out in the appended claims, reference beinghad to the accompanying drawings, in which- Figure 1 is a perspectiveview of my improved wrench, thepipe-grips being shown in the closedposition. Fig. 2 is a side elevation of the wrench, the pipe-grip beingshown in its operative position; and Fig. 3 is a detail perspective viewof the pipe-grip.

In the drawings, in which like numerals indicate like parts in theseveral iigures, l indicates the toothed shank, having a handle 2 at oneend and the integral stationary jaw 3 at the other,`and 4 indicates thesliding jaw. This jaw in its general form is of the conventional shape,except that its rear edge is extended somewhat more, as at 4, thepurpose of which will presently appear.

5 indicates a finger-operated Worm-wheel j ournaled in the sliding jawto mesh with the tlieet-h l of the shank, as clearly shown in The rearedge 4f of the sliding jaw at a point preferably over the worm-wheelopening has a seat 6, formed with upper and lower faces 6 6 and thesemicircular base 6a.

Within this seat portion is adapted to iit a pivoted pipe grip or jaw7,the body proper of which has a semicircular gripping-face 7, serrated orotherwise roughened, forwardlyextending finger or guide members 7b, andparallel extensions or side arms 7", the ends of which are apertured toengage the pivotpin 8, fitted in or integrally formed with the jaw edge4u.

It will be noticed by reference to Fig. 2 that the grip 7is so hung onthe rear edge 4a that when swung to its closed position it will snuglyiit Within the-seat (5iL in such a manner as not to project beyond suchedge 4 or interfere with the use of theimplement as an ordinarymonkey-wrench, and to hold such grip firmly in the socket and alsopulled out to an operative position the edge 4a has avvertical seat ordepression 4", in which is secured a spring-latch 9, the upper or lockend of which is in the path of movement of the pivoted grip 7 and isadapted to snap in front of the outer edge 7 c of the grip, as clearlyshown in the drawings, it being obvious that by providing a latch suchas shown the grip7 can be easily pulled out free from such latch whendesired. The arms 7c are in practice of such length as to permit thegrip being swung outward sufficient to engage a pipe of large diameter,as indicated at X in Fig. 2, and grip it against the rear edge 4, orpipes of smaller diameter, which may be gripped against the beveledupper edge 4d of the jaw. To insure a positive tight grip against pipesof very small diameter, such beveled portion 4d is made with one or moreangle-seats 4, so as to form double grip-surfaces opposing the pivotedgrip, as indicated at X in said Fig. 2.

By constructing the pivoted grip and connecting it to the jaw 4, asshown, it is manifest such grip can be used as an ordinary swing-jawopposing the rear flat edge of the jaw 4, and by providing the said jaw4 with a beveled bearing having one or more angleseats and having thegrip 7 in such relation to the beveled bearing as to swing thereover theutility of the implement is enhanced, as it can operate on pipes ofsmaller diameter with a more positive gripping action. Fur thermore, byconnecting the grip to the jaw socket, as shown, when not in use thegrip 7 can be sWung entirely out of the Way and held from danger ofbeing broken during the ordinary handling of the implement as amonkey-Wrench.

The front fingers 7b of the grip serve as guides to move the pipe to thegrip-seat in operation.

Vhile I have shown the sliding jaw operated by a Worm-Wheel engaging atoothed shank, it is obvious my improvement can be applied to a slidingjaw operated-in any other manner.

My improvement is of a very simple character and can be readilyconstructed in conneetion with the ordinary monkey-Wrench` structureWithout appreciably increasing the eost thereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a monkey-Wrench, in combination with the sliding jaw having a seatin its rear edge, of a swinging grip-jaw, pivotally hung on suoli jaw toswing outward to oppose the rear edge of the jaw, and constructed to fitinto the jaw-seat when held to an inoperative position, as specified.

2. In a sliding-jaw Wrench; in combination' with the sliding jaw havinga socket or seat in its rear edge; of a grip-jaw pivotally hung on thesliding jaw to close into the said socket or seat when held to itsinoperative position, and a spring-detent on the sliding jaw for lookingthe grip-j aw in the said socket or seat, as specified.

3. A sliding-jaw Wrench, having a seat or socket in its rear edge, saidrear edge having a beveled bearing portion; a grip-jaw having aselnieiroular bearing-face, said grip-jaw be ing pivotally hung on thesliding jaw, and so constructed as to be swung out to oppose thestraight or the beveled portions of the rear edge of the sliding jaw andto it in the seat of suoli sliding jaw, as and for the purposesspecified.

4. A monkey-Wrench having its sliding jaw provided with a seat 6, in itsrear edge, said edge having a beveled portion provided withangle-bearings, in combination, with the grip member 7, having agripping-face 7a, guideingers 7", arms 7, pivoted on the rear edge ofthe jaw, at a point between the seat and a beveled bearing portion, andthe spring-latch, all being arranged substantially as shown and for thepurposes described.

W. J. I-IoFFMAsTER, W. II. SoHooH.

